Test unsafe_trait_mismatch

Source location: tests/decl_safety.rs:111

#[test]
fn unsafe_trait_mismatch() {
    FormalityTest::new(crates![crate baguette {
        unsafe trait Foo {}
        impl Foo for u32 {}
    }])
    .rustc_err(expect_test::expect![[r#"
        error[E0200]: the trait `Foo` requires an `unsafe impl` declaration
         --> lib.rs
          |
        3 | impl Foo for u32 {}
          | ^^^^^^^^^^^^^^^^
          |
          = note: the trait `Foo` enforces invariants that the compiler can't check. Review the trait documentation and make sure this implementation upholds those invariants before adding the `unsafe` keyword
        help: add `unsafe` to this trait implementation
          |
        3 | unsafe impl Foo for u32 {}
          | ++++++

        For more information about this error, try `rustc --explain E0200`.
        error: could not compile `baguette` (lib) due to 1 previous error
    "#]])
    .err(expect_test::expect![[r#"
            the rule "safety matches" at (impls.rs) failed because
              condition evaluated to false: `trait_decl.safety == trait_impl.safety`"#]])
}

Rules proved (0)

This test records no positive coverage.

Premises failed (5)

The last column links to the premise’s page when the judgment view counts this failure against that premise. It does not when the premise is read as infallible, or when the failure was blamed inside a multi-line premise that carries no record on its own first line.

Proof trees